Topic: DMD0051
(CONTACT) - if Less Than or Equal (STRLE / ANDLE / ORLE)
The If Less Than or Equal contact mimics the behavior of a momentary, normally open relay. When the value of the left side is less than or equal to the value of the right side, the contacts are Closed, allowing power flow. When the value of the left side is NOT greater than or equal to the value of the right side of the assigned elements are not equal, the contacts are Opened, interrupting power flow.
Use the TAB key to move the edit cursor from the Left Element to the Right Element
Parameters:
Note: Use the F9 key to open the Default Element Selection Tool (the Element Picker or the Element Browser) or use the Down-Arrow key (Auto-Complete) on any parameter field to see a complete list of the memory locations that are valid for that parameter of the instruction.
Left Element is the first element to compare. This can be any constant value or any readable numeric location
Right Element is the second element to compare. This can be any constant value or any readable numeric location
Note: If either left or right side values contain a Time value, the status display will show both values in Time format.
See Also:
(CONTACT) - if Equal (STRE / ANDE / ORE)
(CONTACT) - if Not Equal (STRNE / ANDNE / ORNE)
(CONTACT) - if Greater Than (STRGT / ANDGT / ORGT)
(CONTACT) - if Greater Than or Equal (STRGE / ANDGE / ORGE)
(CONTACT) - if Less Than (STRLT / ANDLT / ORLT)
(CONTACT) - if Less Than or Equal (STRLE / ANDLE / ORLE)
Related Topics:
(CONTACT) - Normally Closed (STRN / ANDN / ORN)
(CONTACT) - Normally Open (STR / AND / OR)
(CONTACT) - Negative Differential (One-shot Falling) (STRND / ANDND / ORND)
(CONTACT) - Positive Differential (One-shot Rising) (STRPD / ANDPD / ORPD)
(CONTACT) - Leading Edge Powerflow Modifier (ANDPDPF)
(CONTACT) - Trailing Edge Powerflow Modifier (ANDNDPF)
(CONTACT) - Invert Powerflow (NOT)
Rung Example:
